Question

Ben Rushin is waiting at a stoplight. When it finally turns green, Ben accelerated from rest at a rate of a 6.00 m/s2 for a time of 4.10 seconds. Determine the displacement of Ben's car during this time period.

Answer 1

s = ut + ½*at²
s = (0 * 4.10) + (½*6*4.10*4.10)
s = 0 + 50.43
s = 50.43 m

Answer 2

Initial velocity (u) = 0

Displacement = ut + 0.5at²
= 0 + [0.5 × 6 m/s² × (4.10 s)²]
= 50.43 m

Displacement of Ben’s car is 50.43 m